What is the hydrogen ion [H+] concentration of a solution of pH 8? Water and Life What is the hydrogen ion [H+] concentration of a solution of pH 8? A) 8 M B) 8 x 10-6 M C) 0.01 M D) 10-8 M E) 10-6 M Answer: D Share this Share on FacebookTweet on TwitterPlus on Google+